Carburetor



A. HQ'EDDY.

CARBURETOR.

l Patented Dec. 5,1922,

5`SHE`l'S-SHEET l.

APPLICATION FILED OCT- 23. 191i. RENEWED OCT. 26 |922.

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APPLlcATmN F1151) ocT. 23. 1911. RENEWED ocT.26, 1922.

,43'7,638 Patented Dee. 5, 1922'.

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1,437,63a A Patented Dec. 5, 1922.

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A. HY. EDDYl cARuaEToR.'

. APPLICATION FILED-012123. 1917. RENEWED OCT. 26. 1922. 1,43%638,l

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Patented Dec. 5,

A. H. EDDY.

cARBuREToR. APPLICATION FILED OCT- 23 I9I7. RENEWED OCT. 26, 1922.

11,437,638, l Patented Dee. 5,1922.

5 SHEETS-SHEET 5.

Patented Dec.` 5, 1922..

stares MTE ARTHUR H. EDDY, Ol? WINDSOR, CONNECTICUT.

CARBURETOR.

erstes.

Application filed October 5.513, 1917, Serial No. 198,144.` `Renewed October 26, r1922. f Serial No. 597,138.

bon liquids of relatively high boiling pointsy and to the production of a fixed gas frein suchv vapors.

The' principal object of the invention is the cllicient vaporination of liquid fuel and hydrocarbon liquids of relatively high boilV ing points, and as the invention findsyso far as now known, its greatest field of usefulness in thatapplication, l will describe the vaiorization as carried out connection with, and the apparatus embodying the. means for operation With. such materials. it being understood that both the principle involved and the apparatus may be useful with other liquids.

The invention includes in its physical ernluidiiuents. constructions lin apparatus for transforniii liquids into vapors and then heating` and cracking said vapors to produce a lined and also to the formation of plosive mixtures by combining the vapor or gas with air.

ln the vaporization of liquid fuel and hydrocarbon liquids of relatively high boiling points, such distillates,-including kerosene and fuel oils, it has been found that when the vapor is produced with apparatus now in use in conjunction with a sniall .arno-unt of heat. the vapor is coarse and unsuitable for use at high efficiency for the reason that all of the vapor is not consumed at the temperature and in the tinie of subjection to the coinbustion temperature. This is particularly true when the combustion takes place in internal zoinbustion motors. lt has1m been founfhalso, that"vaporisation of such fuels or oils by the employment of o wick to burn a small portion of the oil with restricted air supply to heat the bal` ance of the oil. is obgectionable for the re`ason that the iviolr cakes up and a large ainount of smoke is produced which results in the deposit of quantities of carbon.k

Further, the hot tube Julio-riberar in rwhich oil is sprayed under pressure into a heated tube,

has been found unsatisfactory for the reason that the tube chokes up With carbon and n inust be frequently7 cleaned out or replaced.

My invention involves reducing the oil by mechanical ineans to an exceedingly line state of subdivision, that is, vaporizing it, and then utilizing this vapor inany suitable nianner. This l accomplish by subjecting the oil to combined pressure against and friction With a surfaceso that the adhesion of the liquidi to the surface is greater than the cohesion of the liquid. The result is that the liquid is vaporized to anerceedingly high degree of fineness and When visible appears like a greyish White smoke. This action with the surface l obtain by centrifugal force, the surface being inclined at an angle toits axis of revolution and the o il supplied to the surface so'as to be caused to flow along and against the same. This surface is preferably in the form of a cone rot-ated at very high speed1 the angle of inclination of the surface with the axis and thespeed of rotation being selected according to the density of the liquid treated. One effective angle ofinclination is shown' in the draware also factors to be considered in connection with speed and output. rlhe speed inav be six thousand revolutions, and may even reach thirty thousand revolutions perniinnte. Under such conditions the pressurefof the liquid against the cone surface is so high and the friction so great that` the liquid is vaporized While it passes along the surface and before it reaches the edge thereof. lYhile l do not fully understand the theory of the action which takes place l believe that the excessive pressure against the surface causes a heating friction between the liquid and surface7 and possibly between the particles of liquid also, so that the oil is entirely vaporized and `rises from the surface in the forni of a fine inist or fog and the liquid is torn apart and a high degree of fineness of vaporization results. My expe'- riinents show that the liquid does not reach the edge of the cone. but leaves the cone surface fully vaporized before reaching the edge. allowed to reach the edge of the cone, it Would be thrown olf in coar e `spray not suitable for efficient use.

In order to secure the necessary high speed ofrotation of the cone, l employ a ings, and the area of surface and size of cone i .sur

suliicient speed. The power consumed, the watts used in running the motor, seems to indicate that the above theory is correct, as corresponds substantially to the heat units which would be required for vaporization.

. The work done in the actual vaporization may be ascertained by subtractingthe amount done in rotating the cone without the liquid from that done rotating the cone with the liquid. Actual measurements show that the former is only about one-fourth of the latter.

l am aware that it has been proposed to employ various forms of surfaces, includingthe conical form rotated at low speed as by the suction of an internal combustion motor. In these devices the liquid is thrown ofi' from the edge of the surfaces as coai spray. Others have proposed to rotate various disk constructions by power,- but in such construction the action of the liquid on the disk has not resulted in the complete vaporization which makes the vapor or fog rise from the surface of the disk before reaching' the periphery of the disk.

In the practice of the invention the oil is supplied to the cone surface in such quantity as to form a thin layer or film, and the rate of flow of the supply may be regulated according to the conditions.

The vapor produced as above indicated may be utilized in any' suitable manner, as by supplying,` it to a burner or mixing it with air and burning it in an internal combustion motor. ln these uses` the vapor is highly efficient, especially in warm weather, but as a further improvement l prefer to convert it into a fixed gas. This may be accomplished, owing' to the neness of the vapor, by bringing it in contact with a heated surface or heated surfaces of the proper temperature to crack the oil and convert the vapor into a permanent gas. rlhe gas so produced gives remarkably efficient results as compared with the vapor.

The present invention relates to carburetors in general and particularly to carburetors for producing combustible mixtures of fuel and air for use in internal combustion engines or other power plants, and provides a carburetor for producing;` a gas in one chamber and mining` it withv air in another chamber, and adapted to operate without regard to the operations of the internal com bustion engine to which it may be fastened.

@ne object of the invention is to provide an apparatus for producing` unusually etlicient combustible mixtures of liquid hydrocarbon material and air in accordance with the hereinbefore described explanation.

A further object of the invention is to provide an apparatus for using hydrocarbon oils of relatively high specific gravity and which are slow to vaporize and which heretofore have not been used advantageously in explosive mixtures for internal combustion engines.

A further feature of the invention includes the particular design of the parts of the structure, the relative location and the operative relation of the parts by which the efficiency of the apparatus and the process is obtained.

A further object of the invention includes the apparatus whereby hydrocarbon oils having high boiling points are transformed into a vapor state and the heat treatment of such material while in a vapor state to so change its nature that it may be used to advantage to form hydrocarbon oils having low boiling points, and mixed with air to aflord highly efficient explosive mixtures as hereinbefore described.

rlhe invention provides a rotatable conially shaped vaporizer, a high speed electric motor directly connected to said vaporizer, and means for applying` liquid fuel to the same, the centrifugal action of the vaporizer causing the fluid to be delivered as a fogor vapor and not in the form of a sheet of fluid.

Further features of the invention pertain to valves and specific control means for operating the same and the other adjustable parts of the carburetor.

The above features and others to be specilied are described and claimed in the following specification and claims and illustrated in the accompanying;` drawings, in which- Figure l represents a central. vertical section through the carburetor showing the float in the base of the structure, the centrifugal vaporiaer cone, the electric motor directly connected to the same, and the valves which are shown in the closed position.

Figure 2 isa sectional view similar to Fig., l but showing` the lower or primary air valve partly open.

Figure 3 is a sectional view sii'nilar to Figs. l and 2 but showing' the primary air valve wide open and the secondary or upper valve slightly open..

Figure l is a top plan view of 'the carburetor looking down on the electric motor and the regulatingapparatus.

Figure 5 is a view of the regulating cams looking` upward. l

Figure 6 is a top plan view of a casing with tie motor and regulatingcams removed showing` the top of the plunger rods which are connected to the valves within the casing.

Figure is a sectional view showing' a modification having an annular heating chamber inunediately surrounding' a vaporiring chamber and showing,Y taneentizfil gas jets or nozzles for furnishing' flame for heating` the wall of the vaporizing hamysource ber. ln .this arrangement the vaporized and cracked material is drawn oli" of the vapor` izing chamber and passed Vthrough suitable separators or condensers.

Figure 8 shows the arrangement ot the gas jet nozzles and the valves for regulating the same which may be used with the structure shown in Fig. '7.

lu the drawingslike numerals indicate like parts throughout the various figures.-

l is the main casing'ot 'the carburetor toi-med to provi-de an air inlet passage which may open directly to the atmosphere or receive hot air from any suitable heating it the bottom ot the casing 1 is the tuellinlet passage 3 which kcommunieates with a float chamber 1l located centrally in the lower part ot' casing 1. ,A float 5 having a central opening is mounted within said chamber l to Operate a valve (icontrolling the ypassage oi fuel past the valve seat '7. rlhe rising movement of the float 5 will raisethe outer ends of the levers 8 to which it is connected and thereby lower the-Valve-G which is-mounted on the valve guide. rod 9 in engagement with the inner vand .that the upper end is loosely held in an upper support member l() and that ample space remains along the rod 9 for the pas sage of fuel. A p (1n the upper part of the casing located centrally and immediately'above the float chamber l is a circular vaporizing chamber ll.'V havingoblique walls 12 flaring outwardly and upwardly from the side walls or the float chamber 4. The roof of the yaporizing chamber ll is formed by the upper surface of the main casingl and is substantiallyk imperi'orate to the passage of air. The air inlet passage Q, is divided and provides an annular passage immediately surrounding the Vaporizing chamber 11 and concentric with the walls thereof. immediately surrounding the walls of the iioat chamber 4 and separated from the air inlet passage 2 by a wall i3 is van annular chamber 1/1 in which the vaporized fuel and air are mixed as will be 'further described A discharge outlet 15 communicates with the mixingfchamber lll and is provided with throttle valve 16.

This discharge outlet 15 is designed to be directly connected with the intake manifold ot any suitable internal combustion engine or similar power unit. A plurality of pa sages orports 1T are providedthrough the oblique wall 12 of the vaporizing chamber and connect this chamber with an intermediate heating chamber 18 which is concentric with the iioat chamber 4i and the vaporiaing` chamber 1l. and which is substantially below the oblique walls .12ct the yaporiaing chamber. Additional discharge passages or vsa me.

ports 19 are provided through the side Walls of the chamber 1S vcommunieating with the mining' chamber 14.. A covering of wire gauze 2O surrounds the outer wall ofthe chamber' 1S and covers the ports 19 to prevent the passage of any flame should a baci;

i'ire occur into the outlet passage 15 iromthe engine on which the carburetor being used. The wall 13, at a height directly opposite the' ports 119 and gauze 20, is provided with an annular openingv @l extending around the A circular "valve men'iber is slidably mounted on the cylindrical outer surlace or the wall 18 and above the opening 21 and has a ilange extension adapted to seat on the upper surface 13 oit the lower side of the wall 13.

Ar high speed electric motor 23 is mounted on its vertical axis above the casing 1 and has a downwardly projecting rotatable hollow drive sha't't which projects into the rcasing 1 and downwardly to a point just below the surface oil the liquid :fuel in the iioat chamber Il. A. conical vaporizer 25 is mounted on the shaft the lower end thereof. This vaporizer cone has a circular periphery and is provided with straight oblique imperforate walls extending from the point of fastening' on the sl 2d to the immediate periphery which slightly bent to form a narrow horizontal rim as indicated at 25u.

The mounting of the cone 2o on the shaft 24 is accomplished by means ot a concial mem'- ber 26 carried by the shai't 24 and pointing downward. The vaporizer Q5 is adapted to lit 'over this conical member 9,6 and has an enlarged openiiigv to receive the shattd; andy 27 assisting` in centering the cone. The lower pted to project into end ot the cone 2li is l l the central opening oi the illoat 5 and into the liquid iiuel in the iioat chamber e. Passage tor the fuel to the upper sur-tace of the cone 25 is proyided by the central bore 282 the passa.r es 5281 which extend from the bore 28l toI the cone 26i and the Ichannels 26" formed in the surface of the cone 2G and proyidiirfK between the cone Q6 and the vaporizer cone 25 to the upper surtt ce voit the latter The plurality of channels assists in directing the liquid fuel in eren amouf s to the cone Control means tor the bore 2S vis provided by a tapered valve member 29 which seats against the side walls et the carried by Valve rod 30 which extends upwardly through the hollow shailit to a point near the ton f :he vanorizing chamber at which p it sl' Acollar 81 is mounted on the s; i t piyoted lever 32 havingy a yoke is i' Vated to engage the means 'tor conducting the liquid' bore 98a and is the edge of the cone. rlhis result is obtained by the particular construction of the vaporize'r cone and its mounting together with the fact that the electric motor is designed 'to operate at very high speeds. ltis not necese sary that the motor be restricted toan electricsmotor but it is necessary that tremendous speeds 'be furnished. In oneform of a. paratus Whichhas vbeen. successfully used with a light oil a speed of 6000 R. P. M. Was used.v Speed requirements must also vary with the viscosity of the material treated and temperature. A small turbine motor having a powerfulblast for driving the same might accomplish the same results if suilicient speed could be obtained. The movement' of the liquid onthe inner surface of the cone has been described as follows. Centrifugal force inipels the liquid outivardly against the surface of the cone to which it adheres. Additional particles of liquid, on being supplied to the cone, flow over those adhering to the surface and in turn adhere thereto. Under correct conditions the liquid thus spread out is vaporized before it reaches.

the outer edge of the cone.y The reason for this action., as at present understood, may be summarized in the statement that the heatgenerated as result of the adhesion of the liquid to the cone surface being greater than the cohesion of the liquid, is suflicient to vaporize the liquid. ln other Words, when a given amount of liquid is spread sufficiently, the heat that is in the energy used to force the liquid out over the surface is sufficient to vaporize it. rlhe conditions necessary for proper vaporization vary with the nature of the .liquid and the speed, lighter oils vaporizing at lower speeds and with less poiver than the heavier oils. It is understood that the centrifugal torce iinpels the particles of liquid against the surface of the cone Witha force several thousands times greater thanthe cohesionof the particles of the liquid. To rotate the vaporizer idly. that is without the application of liquid to the surface it has been found that but four units of Wol-lr have been required as compared to the twenty units required when liquid is being` fed to the cone surface. Itis estimated. that this difference is consumed y in overcoming` and breaking up the liquid, and that this work, perhaps in the forni of heat is taken up by the liquid and by the cone. Or it maybe that the film is torn apart and thus broken up into minute parkerosene orfother oil being acted upon. My

ticles which constitutey the very tine mist or iogreferred to. lllhen the fuel is discharged from the cone, it rises from the surface of 'the cone inthe form of a tine inist or fog and moves yas a cloud of `vapor directly against yand over the electrically heated member 34 and While it is in a vapor state the material is cracked so that it is possible to'use in this apparatus oil which has heretofore been too heavy to be successfully used for forming combustible mixtures.

yln the performance of the carburetor coinplete vaporization of kerosene and other oils in the forni of a very line inist ory fog rising from the inner surface of the cone is effected Without the use of heat, and vthe vapor so `produced may be mixed with air as above specii'ied. ln addition, has been found that such vaporisation is accelerated and facilitated by the heating action of the heating coilandthis forni of heat'niay be employed to .raise the teinperatureof the high speed revolving cone and thereby the invention therefore contemplates the `ein ployment of ay certain amount of heatl to assist in the vaporisingaction when desired,

aswell as in the vaporization effected solely by the action ofthe high speed'revolving cone upon the. fuel alone. f n

ln. using theterm line `mist or fog, l contemplate the very yfine vinist orvapor produced by my process and apparatus, as distinguished yfrom a coarse vapor -or spray, f

forinstancdthis very fine inist or fog constitutes a nebula, which, Whenperinitted to rise in the air fromthe surface of the revolving cone, remains suspended and floats olf in the airfor a considerable-length of f time.

`Wliile have discussed the application of my invention to kerosene rand other hydrocarbons which arey heavier than the very lirht h 7drocarboii coinmonlv known as o'asoo d .l 2: line, l Wish it understood that my apparatus may be used, and hasbeen used by me,-ivith gasoline, in which casev highly satisfactory and desirable'results were produced.

lllhen the control .means is actuated the va'porized fuel is discharged from the cone, is'heat treated the memberel, and passes out through the port l? and i9 into the niinf ing chamber llineetiiig the infloiving air which passesthrough the valve-2l after the valve '22 is raised.` The air and vaporized. fuel is mii d atthis point and passes out of the mining chamber ld into the discharge passage contii'olled by throttle'valve l. Should it be desirable to raise the valve 3S, this may be done by relieving the pressureon the upper endof the plunger lan and allowing the opening at i0 to permit the entry of a minute amount .of air rdirectly lagainst ythe opposite side of the heating ineinber Se. ln this instancethe mixed air y izo ing a vapor, a mixing chamber commenicatn ing with said vaporizing chamber to receive vapors theretronn'an air passage coinmunicating with said mixing chamber, and means to regulate the admission et air to said mixing chamber including a valve positioned between said air passage and said mixing chamberp 4. In a carburetor, a vaporizing chamber', rotary vaporizing' means in said chamber for producing a constant supply ot' vapor, power means for actuating said ivotary vaporizer means through the axis thereot', a mixing' chamber communicating with said vaporizing chamber to receive vapors theretrom, an air passage communicating with said mixing chamber, and control means including` a valve to regulate the admission ot air from said air passage to said mixing chamber.

5. In a carburetor, a vaporizing chamber, rotary. means in said chamber or producing a vapor, means in the path of such vapor for converting said vapor to a gas, a mixing chamber communicating With said va porizingchambei"to receive aeritorm fuel therefrom and mix the same with air, an air passage communicating with vsaid mixing chamber', and means to regulate the admission of air to said mixing chamber including a valve positioned between said air passage and said mixing chamber.

6. In a carburetor, a vaporizing chamber, rotary vaporizing means in said chamber for producing a constant supply of vapor,

power means for actuating` saidrotary vaporiZer means through the axis thereof, means in the path of such vapors tor converting said vapor to a gas, a mixing cham* ber coimnunicating With said vaporizing chamber to receive aerit'orm iuei therefrom and an air passage communicating With said mixing chamber7 and control means to regulate the admission of air 'from said air passage to said mixing chamber.

7. In a carburetor, a casing having a vaporizing chamber7 a vaporiZer member Within said chamber rotatably mounted to turn on a given axis and having a vaporizing surface disposed at an angle to the axis or' rotation, means for supplying liquid heavier than gasoline to be vaporized to said surface, means for rotating said *vaporizen member and surface at such speeds as to vaporize at least a portion of the liquid before it reaches said lateral edge-ot said vaporizing surface, a mixing chamber in parted communication with said vaporiaing cham-` ber to receive the vapors therefrom and mix the same with air, and valve means to control theadmission oi? air into said mixing chamber. n

S. In a carburetor,y a casing having a vaporizing chamber, a vaporizer member Within said chamber rotatably mounted to turn on a given axis and l'iaviiigv a vaporizing` surtace disposed at an angle to the axis of, rotau tion,A juieans iter suppiying liquid to be vaporiaed to aid surface at a point adjacent the ci rotation and on the side oi? said surface towards said axis, means ifor rotat- Uing said vaporiaing nember and surface at such a spec/l as to cau:l the liquid to entirely vaporize iroin said surface in the i'iorin oi'V a Atine mist or Yfog, a mixing cham bei' in ported communication with said vaporizing chainlier to rereive the vapors therefrom and mix the same With air, and. vaive means to control the admission of air into said mixing chaiiber.

A carburetor comprising' a main casing' having ran air iniet passage, a 'fuel inlet passage, and a fusi mixing chamber for mixing air and vaporous tuei, a rotatable fuel vaporizing member within said casing, an adjustable air supply vaive beta/een said air inlet passage an(h said mixing chamber, control. means to regulate the rotation of said vaporizer member, and means to regulate the position oi? said air supply valve. i0. carburetor comprisiii gl alma' casing ha 'ing an air iniet pas a iuel iniet passage for duid .inch and mixing cha iiber for mixing air and vaporous tiiel, a iuel 'vaporizei' chaml' r within which ituel is yvapo]irreal communica with said ituei inlet passage and with said chain bei', a yr jable :tuei vaporiaer meuibe Within saifl vaporiaino; chamber, means to regulate the appiici 1 said vapori member, and in ans to reguiate the jiiowv oif aerii'ioi'in ii'iateriai through said mixing chamber.

il. carburetor corn ing havinff an air inlet pasta 5 passavo for iiquid iu/ol, and a inixi hann ber o iiiixr air and 'vancrous iiuel, a tuel vapoiia'ing chamber within Y'hieh fuel is vapoiiized comin nicati vf said fuel inlet passage ano 'u th 'f man" .i vanorizing chai; ber, means y c; y a rotatable liquid tuer vaporizer iii-einher Within reguiate the entrance et 'uei Ytrom s inlet passage to sai/C` i'uei vaporiaing chamber, and means to regrdate the lion' oit aeriorin material tlirougijh said mixing chain-- ber.

l; i @eter comi-rising main casing havi let passage, anita iii; g ingiaii and ore-us fuel, a 1 chamber communieathA 1 iet passage, rotatahie ber within said vaiorinnig ci pass to regulate the entrance o'lf iiuei `from said 'fusi iniet pa saire to said tuei vapori fr chan'iier, and meansto ieguhite the applica tion oi? ruel to said vaporific' member.

i i carbureto' comprising` main casing having an air inlet passage, Yfuei inlet passage, and a inixingchainber i'or mixing Sli fifi

ery, and valve means carried by said vaporizer member for regulating the application of fuel to said vaporizer.

28. ln a carburetor, a casing havinga fuel vaporizing chamber, an intake pipe for liqv oblique walls extending from the shaft toward said periphery.

24. In a carburetor, a casing having a fuel vaporizing chamber, an intake pipe for liquid fuel communicatingk with the same, rotatable vaporizer means comprising a driven shaft, a high speed motor connected to and in axial alignment with said shaft, an inverted conical vaporizer mounted on one end of said shaft and within said chamber and having a circular periphery with oblique walls extending from the shaft toward said periphery, and means carried bv said vaporizer for conducting fuel to be vaporiaed from a point below said vaporizer to the upper surface of the same.

25. In a carburetor, a casing having a fuel vaporizing chamber within which fuel is vaporized, an intake pipe for liquid fuel connected to the same, rotatable vaporizermeans within said chamber comprising a vertical driven shaft, an inverted vaporizer cone of thin sheet metal within said chamber mounted on the lower end of vsaid shaft and having a circular periphery with oblique walls extending from the shaft upward toward said periphery, means for conducting fuel to be vaporized from a point below said vaporizer cone to the upper surface of the same, and manually controlled means for regulating the flow of fuel to the upper side of said cone.

26. ln a carburetor, a casing having a fuel vaporizing chamber, an intake pipe for liquid fuel communicating with the same, a rotatable vaporizer member within said vaporn izing chamber comprising` a hollow driven shaft, an inverted vaporizer cone mounted on and encircling said shaft at the lower` end thereof and having` a circular peripheny and oblique walls extending ytoward said periphery, and means for regulatingr the application of liquid fuel to be vaporiaed to said cone comprising a valve rod extending through said hollow shaft and said cone and a valve at the lower end of said shaft operated by said valve rod. i

27. In a carburetor, a casing having a fuel vaporizing chamber, an intake pipe for liquid fuel communicating with said chamber, an air inlet passage, and a mixing chamber for mixing air and vaporousfuel, an air valve between said air inlet passage and said mixing chamber, a rotatable rfuelvaporlzer member within said vaporizing chamber comprising a hollow driven shaft, an inverted vaporizer cone mounted on and encircling said shaft at the lowery end thereof and having a circular periphery and oblique walls extendingupwardly toward said `periphery, a fuel valve within said hollow shaft andthe lower end thereof, and unitary means for actuating said air valve and c said fuel valve.

28. In a carburetor, a casing having al fuel vaporizing chamber, an intake pipe for liquid fuel communicating with said chamber,

an air inlet passage, and a mixing chamber for mixing air and vaporous fuel, aprimary air valve between said air inlet passage and said mixing chamber, a secondary air valve between said air inlet passage and said fuel vaporizing chamber, a rotatable fuel vaporizer member within said vaporizing chamber comprising a hollow driven shaft, an inverted vaporizer cone mounted on and encircling said shaft and having a circular periphery and oblique walls extending upwardly toward said periphery, a fuel valve ywithin said hollow shaft and at the lower an inverted vaporizer cone mounted on andk encircling said shaft and having a circular ceriphery and oblique walls extending` up- `wardly toward said periphery, a fuel valve within said hollow shaft and the lower end thereof, a throttle valve in said mixing chamber, and unitary means for controllingv said fuel valve, said air valve and said throttle valve. f

30. ln a carburetor, a casing having a fuel vaporizing` chamber, an intake pipe foi` liquid fuel communicating wdth said chamber, an air inlet passage and a mixing cham` ber for mixing air and vaporous fuel, a primary air valve between said air inlet passage and said mixing chamber, a'sec-v ondary air `valve between said air inlet passage andsaid fuelvaporizing chamber, a rotatable fuel vaporizer member within said vaporizing chamber comprising a hollow driven shaft, an inverted vaporizer cone mounted on and encircling saidvshaft and having a circular periphery and oblique walls extending upwardly toward said periphery, a fuel valve within said hollow shaft and at the lower end thereof, a throttle valve in said mixing chamber, and unitary means for actuating said primary and secondary air valves, said fuel valve and said throttle valve.

3l.. In a carburetor, a casing having a fuel vaperizing chamber, an intake pipe for liquid fuel communicating with the same, a rotatable vaporizer member within said vaporizing chamber comprising a driven shaft extending through said casing in one direction, a vaporizer cone having a circular periphery mounted on said shaft and having oblique walls extending from the latter toward said periphery, and a high speed electric motor connected to the end of said shaft projecting beyond said casing and in axial alignment with said shaft, and means for regulating` the application of fuel to be vaporized to said cone.

32. In a carburetor, a casing having a central vaporizing chamber and an air inn take passage concentric and in ported communication therewith, an adjustable air valve within said casing controlling` com'- munication between said air intake passage and said vaporizing chamber, a plunger connected to said valve and extending through saidcasing, and means movably mounted. above said casing and adapted to be moved to actuate said plunger Lo operate said valve.

33. In a carburetor, a casing having a central vaporizing chamber and an air intake passage concentrictherewith, an adjustable circular air valve within said casing and concentric with saidair intake passage, a plurality of plungers spaced apart and connected to said valve and extending beyond said casing, and a plurality of operating members spaced apart in fixed relation to each other and adapted to be moved to actuate said plungers to operate said valve.

34. In a carburetor, a casing having a central vaporizing chamber and an air intake passage concentric therewith, an adjustable air valve within said casing between said air intake passage and said vaporizing chamber, plunger connected to said valve and extending through said casing, a cam member movably mounted above said casing and adapted to be moved to actuate said plunger to operate said valve, and means to vary the pitch of said cam member.

35. In a carburetor, a casing having a central vaporizing chamber and an air intake passage concentric therewith, an adjustable circular air valve fithin said casing and concentric with said air intake passage, a plurality of plunger-s spaced apart and connected to said valve and eirtending beyond said casing, a plurality of Lacasse ber, a fuel valve within said casing for f regulating the passage of liquid fuel to said vaporizer member, a plunger connected to said fuel valve and projecting through said casing, and a cam member movably mounted above said casing and adapted tobe moverv to actuate said plunger for operating` said fuel valve.

37. In a carburetor, a casing having t, central vaporizing chamber and an air iutalie passage concentric therewith, a rotatable vaporizer member within said cham ber, a fuel valve within said casing for regulating the passage of liquid fuel to said vaporizer member, a plunger connected to said fuel valve projecting through said casing, a cam member movably mounted above said casing and adapted to be moved to actuate said plunger for operating said fuel valve, and means to vary the pitch of said cam member.

3S. In a carburetor, a casing having a central vaporizing cha ber and an air intake passage concentric therewith, anv adjustable air valve within said casing between said air inta-ke passage and said vaporizing chamber, a plunger connected to said 4air valve and projecting through said casing, a rotatable vaporizer member within said chamber, a fuel valve within said casing for' regulating the passage of fuel to said vaporizer member, a plunger connectea to said fuel valve and projecting through said casing, a cam member inovably mount ed above said casing and adapted to be moved to actuate said plunger to operate said air valve,.a second cam member mounted above said casing and adapted to actuate the plunger connected to said fuel valve, and unitary control means for operating said cam members.

39. In a carburetor, a casing having a central vaporiziiig chamber and an air iutake passage concentric therewith, a circu lar adjustable air valve within said casing and concentric with said intake passage, a plurality of plungers spaced apart and connected to said valve and project-ing through said casing, a rotatable vaporia r member within said chamber. a fuel valve within said casingfor regulating the passage of liquid fuel to said vaporizer meniber, a plunger connected to said fuel vale and projecting through said casing, a cam member' movably mounted above said casing and adapted to be moved to actuate said plunger on saidfuel valve, and a plurality of cam members spaced apart and adapted f to be moved to actuate saidfplungers connected to said air valve to operate the latter.

40. ln a carburetor, a. casing having a central vaporizing chamber and an air intake passage concentric therewith, an adjustable air valve within said casingbetween said air intake passage and said vapoi'izing chamber, a plunger connected to said air valve and projecting through` said casing, within said chamber, a fuel valve within said casing for regulating the passage of fuel to said vaporizer member, a plunger connected' to said liquid fuel valve and projecting through said casing, a ycam member movably mounted above said casing and adapted to be moved to actuate said plungerto operate said air valve, a second cam ment ber mounted above said casing and adapted to actuate the plunger connected to said fuel valve, andk meanstovary the pitch of said cam members. t

4l. 'ln a carburetor, a casing having` a central vaporizing chamber and an air intake passage concentric therewith, a circular adjustable air valve within said casing and concentric with said air intake passage, a plurality of plungers spaced apart and connected to saidr valve and projecting through said casing, a rotatable vaporiaer member within said chamber. a fuel valve within said casing for regulating the passage of liquid fuel to said vaporizer member, a plunger connected to said fuel valve and pr jecting through said casing, cam member movably mounted above said casing and adapted to be moved to actuate said plunger on said fuel valve, a plurality ofI casing, a cam member movably mounted above said casing and adapted to be moved to actuate said plunger `to operate said valve. and means to vary the pitch of said cam member comprising a secondary cam' member adapted to bemoved with respect to said first cam member to vary thevinclination of the surface of the latter,

43. lnacarburetor,acasinghavinga central vaporizing chamber'and an air intake passage concentric therewith, an adjustable cir`- a rotatable vaporizing member cular air valve within said casing and con centric with said air'iiitake passage, a plurality of plungers spaced apart and coniiected to said valve and extending beyond said casing, a plurality of cam members spaced apart in fixed relation to each other and adapted to be moved to actuatesaid plungers to operate said valve, and means y justable circular air valve within said casing and concentric with said air intake passage, a plurality of plungers spaced apartand connected :to said valve and entending beyond said casing, a pivot-ally mounted support on said casing, and a plurality `of cam members on said support spaced apart inffixed relation to each other and adapted to be moved to actuate said plungers to operate said valve, movement of said supportf member acting to actuate said plungers by engagement with said cams.

45. ln a carburetor, a casing having a central `vaporizing chamber and an air intake with respect to said supp-ortineinber and carrying secondary cani members adapted to kenga-ge said first cam members to vary the inclination of the surfaces of the latter.

46.111 a carburetor comprising a main casing having a central vaporizing chamber, an air inlet passage, a mixing chamber for mixing air and aeriform fuel, and a fuel inlet passage for liquid fuel communicating with said vaporizing chamber, a rotatable fuel vaporizer member within said vaporizing chamber and adapted to discharge and vaporize fuel, and a fuel heating medium for heating aeriform fuel within said casing encircling said vaporizer member` and locat ed around said vaporizer member.`

47. ln a carburetor coiiprising a mainy casing having a central vaporizmg chamber, i

an air inlet passage, a mixing chamber for mixing air with aeriform fuel, and a fuel inlet passage for liquid fuel communicating with said vaporizng chamber, a rotatable f fuel vaporizerfmember within said Vaporizing chamber and adapted tok discharge and vaporize fuel, and a heating medium Within said vaporizingchamber encircling said vaporizer member for heating aeriform, fuel. ln a carburetor comprising a main casing having a central vaporizing chainbei, an air inlet passage, a mixing chamber n'iixing air and aerif'orm fuel, and a fuel inlet passage for liquid fuel cominunicatiirr with said vaporizing chamber, a rotatan el vapcrizer member Within said iniporizing chamber comprising an inverted i, iporirier cone of thin sieet metal having a circular periphery and mounted on said shaft und having oblique Walls extending toward siid periphery, said cone being adapted to dis-charac vaporized fuel, andan electrically fied member Within said chamber spaced from and en'rircling said cone and adapted to heat the vaporized fuel discharged from tY1 latter.

9. .in a carburetor comprising a main using having a central vaporizing chamber, an air inlet passage, a mixing chamber for mixing air and aeriform fuel, and a fuel inlet passage for liquid fuel communicating with said vapoiizing chamber, a rotatable fuel vaporizer member Within said vaporizingr chamber comprising an inverted vaporizer cone of thin sheet metal having' a circular periphery and mounted on said shaft and having oblique Walls extending toward said periphery, said cone being adapted to discharge vaporized fuel, and a circular electrically heated member within said chamber spaced from and encircling spirally said. cone and adapted toheat the vaporized fuel discharged from said cone.

50. A carburetor comprising amain casing having a central vaporizing chamber, an air inlet passage, a mixing chamber for mixing air and aeriform fuel, and a fuel inlet passage for liquid fuel communicating with said vaporizing chamber, a rotatable fuel vaporizingmember Within said vaporizing` chamber and adapted to discharge and vaporize fuel, an intermediate heating chamber between said vaporizing chamber and said mixing chamber, a heat-ing medium within said intermediate heating chamber, cominunicating passages between said vaporizing chamber and said intermediate chamber and between said chamber and said mixing chamber.

. A carburetor comprising main casing` having a central vapoiizing chamber, an air inlet passage, ainixing` chamber for mixing air and aeriform fuel, and a fuel inlet passage for liquid fuel communicating with said vaporizing chamber, a rotatable fuel -vaporizer member Within said vap-orizing chamber adapted to discharge and vaporize fuel, a series of communicating ports between said vaporizing chamber and said mixintermediate fait ing

ioca'ted'iii proximity to said gauze screen. .fi carburetor comprisingL a main casL yin@q having a central vaporizing chamber,

an air inlet passage, a. mixing' chamber for mining air and aerifoim fuel, and a fuel inlet passage for liquid fuel communicating with said vaporizing chan'ihe-r, a rotatable fuel vaporizer member within said vaporizin iamber adapted to discharge and vaporize fuel, a fuel heating member heated electrically within said vaporizing chamber and encircling` said vaporizer member and adapted to heat the vapoiized fuel discharged from the same, a primary air valve betiv en said air inletpassage and said mixchamber, and a secondary air valve encircling said vaporizing chamber and on the opposite side of said heating member from the periphery of said vaporizer member and constituting a valve controlled opening between said air intake passage and said vaporizing chamber.

58. ln a carburetor, a casing having a vap rizing chamber, a rotatable vaporizer cone Within said chamber adapted to be rotated at high speed and to centrifugally discharge fuel in the form of vapor, a heating' element located Within said chamber opposite to said cone and adapted to receive the vapor discharged from the cone and to chemically change the same, and means for mixing said changed vapors with air to form a combustible mixture.

ln an apparatus for vaporizing liquids, a casing having vaporicing chamber. a if'apoiizer member Within said chamber rotatably mounted to turn on a given axis and having a vaporizing surface, inclined at an angle to said axis, means for supplying liquid to be vaporized to said su face, means for regulating the amount of liquid supplied 'to said surface, and means for rotating said siirfa e at a predetermined speed according to the density of the liquid employed and 'to cause the liquid to entirely vaporize from said surface in the form of a line mist ci' fop', mixing chamber connected to said vaporizing chamber to receive vapors therefrom, and means to control the admission of air into said mixing` chamber.

lnan apparatus for vaporizing liquids, casing having a vaporizing chamber, a wiporizer member iv thin said chamber rotatably mounted to turn on a `given axis and having a vaporiziiig surface inclined at an angle to said axis, means for supplying liquids to be vaporized to said surface, means for rotating said surface at a predetermined speed according to the density of the liquid employed and to cause the liquid to entirely7 vaporize from said surface in the form of air inlet passage and said mixing chama vaporiz' fine mis or fog, a mixing chamber conneced "so said Vaporizing chamber to receive vapois heiferom, and means to control the admission. of aii into said mixing chamhei.

A carburetor for using hydrocahon liquids of rela `iif'eiy vhigh boiling` points, comprising` an ouei casii 0; having theiein j chamber vapoiizei' memhei having; en interior conicallj shaped Vapoisn ing surface ioatably mounted Within said chamber turn. on she axis oi? a cone, means to supply said liquid to said interior conical surface in piopeiquantity to proif'ide a hlm on the surface, means for iotating said var poiizing member at nropei speeds Whichr combined with the angle of said vapoiizingf surface causes combined pi'essuie and *iic` tion of said liquid iilm on said surface to Yapoiise said liquid from seid surface Within the iimis thereoi in the form of a ne misi` oi' fog? a mixing' chamber in ported communication with said Vapoiizing chainbei, an air passage leading thereto, and an auf Twaive govei'ning the admission of air to said mixing' chamber.

57. A carburetor 'for using iiquids which f oiised with dih'ieuly, comprising an ng concaming` an enclosing chamhei, a surface of limited ext-ent Within said ehamhei` mounted to iotae about an axis and inclined at proper angle thereto, means for supplying' liiuid to said surface on Jche side toward the axis, means foi iotating the suviiace stench high Seeed as, at the angle of said surface, to cause combined pressure and ifiietion of J@he liquid upon the surface to vaporize said liquid from said rsurface Within. the limits thereof in the form of a ine mis*u oi1 fog a mixing chamhei in ported communication with said enclosing` chamber, an air passage leading to said mixing chamber, and an air Valve governing the admission of aii to said mixing chamber.

, in tesigimony whereof l have hereunto set my hand.

ARTHUR H. EDDY. 

